<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      .box {
        color: red;
        border: 1px solid;
        font-size: 20px;
      }
    </style>
  </head>
  <body>
    <div class="box">
      div 元素
      <span>span 元素</span>

      <input type="radio" name="gender" id="" />
    </div>
  </body>
</html>
